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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2013

Stockholders' Equity [Abstract]

Summary of Stock option activity

		Number of Shares				Weighted - Average Exercise Price Per Share				Weighted - Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value
Outstanding at December 31, 2012			1,936			$	29.03
Granted			62				27.68
Exercised			(45	)			18.61
Forfeited			(32	)			30.75
Outstanding at March 31, 2013			1,921			$	29.20				6.35			$	6,332
Exercisable at March 31, 2013			1,071			$	26.88				4.69			$	5,346

Details of restricted stock unit activity

		Number of Shares				Weighted - Average Grant Date Fair Value
Unvested at December 31, 2012			301			$	32.98
Granted			7				27.55
Vested or settled			—				—
Forfeited			(44	)			30.30
Unvested at March 31, 2013			264			$	33.29

Summary of stock-based compensation recorded in expense categories

		Three Months Ended March 31,
		2013				2012
Cost of services and fulfillment		$	904			$	653
Selling and marketing			422				224
General and administrative			534				446
Total		$	1,860			$	1,323

Valuation of options granted under the equity incentive plans and shares subject to purchase under the employee stock purchase plan

		Three Months Ended March 31, 2013								Three Months Ended March 31, 2012
		Equity Incentive Plans				Employee Stock Purchase Plan				Equity Incentive Plans				Employee Stock Purchase Plan
Average risk-free interest rate			0.81	%			0.11	%			0.84	%			0.14	%
Expected dividend yield			2.1	%			2.1	%			1.7	%			1.7	%
Expected life			4.5 Years				0.5 Years				4.5 Years				0.5 Years
Expected volatility			40	%			25	%			40	%			31	%
Weighted average fair value		$	7.72			$	5.97			$	10.05			$	7.54

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Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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